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248051157 = 3607136217
BaseRepresentation
bin11101100100011…
…11010111010101
3122021202022012220
432302033113111
51002000114112
640340332553
76101254134
oct1662172725
9567668186
10248051157
11118022562
126b0a4159
133c50c643
1424d2d91b
1516b9b98c
hexec8f5d5

248051157 has 8 divisors (see below), whose sum is σ = 331282176. Its totient is φ = 165093792.

The previous prime is 248051149. The next prime is 248051249. The reversal of 248051157 is 751150842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 248051157 - 23 = 248051149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248051357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66288 + ... + 69929.

It is an arithmetic number, because the mean of its divisors is an integer number (41410272).

Almost surely, 2248051157 is an apocalyptic number.

It is an amenable number.

248051157 is a deficient number, since it is larger than the sum of its proper divisors (83231019).

248051157 is a wasteful number, since it uses less digits than its factorization.

248051157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136827.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 248051157 is about 15749.6399006453. The cubic root of 248051157 is about 628.3193274034.

The spelling of 248051157 in words is "two hundred forty-eight million, fifty-one thousand, one hundred fifty-seven".

Divisors: 1 3 607 1821 136217 408651 82683719 248051157